diff --git a/lib/modules/database.js b/lib/modules/database.js
index 5c4b27e..9956f39 100644
--- a/lib/modules/database.js
+++ b/lib/modules/database.js
@@ -96,7 +96,7 @@ class DatabaseQuery {
   }
 
   setFilter(name, ...args) {
-    this.filters[name] = args;
+    this.filters[name] = args.filter(n => n != undefined);
     return this.ref;
   }